Winding-indicator.



. s. KAHAN. v WINDING INDICATOR. APPLIGATIOE FILED APR. 9, 1908.

9CPI;,3S,2-a Patented Nov. 17, 1908 To all whom it may conccv SAliUlELlililtllrbl, Ol NE YORK, K. Y.

No. see-sea.

main spring is employed.

The invention is especially adapted to that type of instrument in whichone end or" the main spring is connected to thegoing barrel, and theopposite end tl ereot is connected to the. central arbor, the barrel andarbor being rotatable in the same direction and one rotating only duringthe winding of the spring and the other rotating during the unwindingofthe spring or running of the instrument.

My invention includes the operating mechanism for moving an indicatinghand, said mechanism inchiding a member movable longitudinally and alsorotatable, the movements of the member being dependent upon themovements of both the arbor and the barrel.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures, and in Which Figure 1 is a frontview of a .watch having a winding indicating hand; 2 is a front view ora portion of such a watch. the dial and some of the wheels beingremoved; Fig. 3 is a transverse section on the line 3 3 Fig. 2; and Fig.l is a view similar to Fig. 3, but showing a slightly modified form.

My improved winding indicator ed to be applied to any cl;.-. 4 otherinstrument of the *liktl. but particularly to that i rates known as agoing barrel "x to, that is. one in which the barrel and arbor areconnected to opposite ends of the main spring and rotate in the samedirection.

In Figs. 2 and 3, I have illustrated 2. tion or" a watch having what isknown hanging-b rrel, that is one which is ported entirely from one ofthe two plates of the frame. as shown. The Winding arbor l l I l l l l lifi'oeeification of Letters Eatent.

i. filed lipril i), i908.

Patented Nov. 17, 1908.

Serial lie. 4:26.025.

extends through the'bacl: plate 11 of the watch. and is provided with acollar 12 engaging with one side of said plate. and the winding ratchet1S engaging with the opposite side of the plate, so as'to support thearbor and avoid the necessity of securing the opposite end or the arborto the front plate let of the watch. 10, is the barrel 15, serving toinclosc the main spring 16.

secured to the arbor, and the opposite end is secured to the barrel, asis customary in ratches of this type. The dial 17 of the watch is spaceda short distance from the front plate 1 1. and in this space there ismounted a pinion 18, the arbor of which tends through the dial andcarries a winding indicating hand 19. Also mounted between the frontplate l t-and the dial are a lever 20 and a spring 21. The lever ismounted upon a pivot 22 and one end of the lever is provided with acurved rack in operative engagement with the pinion 19; The spring 21 ofany suitable type and serves merely to take up back lash in theeugagement ot' the rack bar with the pinion. and to tend to rotate thepinion in one direction.

The main feature of my invention is the means employed for operating thelever. This means includes a momher mounted coaxially with the arbor androtatable in respect to the arbor and movable longitudinally in respectto the arbor and barrel. This member, as shown in Figs. 2 and 3,includes a circular plate Bi and a threaded stem 25. fitting into athreaded socket in the arbor. The barrel carries a pin 26 parallel tothe arbor and stem and extending through an aperture in the plate. 2%.The lever 20 terminates in a downwardly-extending arm 27. having a camsurface in the path of the plate Q l during its longitudinal'ie-.=-uuent. During the winding of the the arbor 10 is rotated by thegear wheel 13. while thebarrcl remains substantially stationary. Thebarrel prevents the plate 2 from rotating and the rotation of the arbordraws the plate 2 dow-irward to a position adjacent the barrel, due tothe threaded engagement of the stem and arbor.

The engagement of the plate with the cam surface of the lever 20 swingsthe latter on its pivot and rotates the pinion 18 and the swinginindicating hand 19 carried by said pinion. As the main spring unwinds,that Gne end (it the spring Mounted upon the arbor 1 tion during therunning. The entire mechthe winding.

is, when the watch is running, the arbor remains stationary, but thebarrel rotates in the same direction as the arbor during This rotationof the barrel causes the plate 24 to be'rotated by reason of theengagement of'the pin 26, and this rotation of the plate 2st while thearbor remains stationary, moves the plate longitudinally and permits thelever to move in the reverse direction under'the action of the spring21. Thus, the indicating hand 19 is operated in one direction during thewind ing of the watch, and in the reverse direcanism for rotating thepinion of said hand comprises only three essential elements, namely; themember including the plate 24, the lever. including the arm 27, and thespring 21.- These elements may be varied arbor.

widely without departing from the scope of my invention.

In case the indicating mechanism is used on a stationary instrument,gravity may be relied upon to move the lever 20 in one direction, andthus the spring 21 may be omitted. In case it is desired to support thewinding arbor at both ends, I may modify the construction as shown in Figfat. In this case, the arbor 10 is provided with a reduced threadedextension 25 having bearing in the front plate 14 of the instrument. Theplate 2% is threaded to this reduced extension of the arbor, and isrotated with the barrel 15 by the pin 26*, The operation of the plateupon the lever 20 and its cam surfaced arm 27, is identically the samewhether the plate be threaded to a stem extension of the arbor, orwhether it be provided with a stem having threaded engagement with theIn either case, the plate is rotated during the running of the watch,and is also moved longitudinally in one direction, while during thewinding of the watch it is moved longitudinally in the reversedirection.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent:

' 1. In combination with a main spring and a barrel and an arborrotatable in the samedirection and connected to opposite ends of saidspring, of a winding indicator including an oscillatory hand, anoperating memher having threaded connection with the arbor and movablein one direction during the rotation of the arbor and movablelongitudinally in the, opposite direction during the rotation of thebarrel, and connections between said member and said oscillatory hand.

2. In combination with a main spring, and

abarrel and an arbor connected to opposite ends of said spring androtatable in the same direction, one during the unwinding and the otherduring the winding of the spring, of a Winding indicator, and operatingmeans therefor, including a lever and a member for swinging said lever,said member being rotatable and movable longitudispring, of anindicating hand, a pinion for oscillating said hand, a lever having asegment in engagement with said pinion, an arm carried by said lever andpresenting a cam surface, and a plate carried by said arbor androtatable and longitudinally movable in respect thereto and havingengagement with said cam surface.

4. In combination with a main spring and a barreland an arbor connectedto opposite ends of said spring, of a winding indicator including anindicating hand, an operating member having a disk portion and athreaded stem concentric with said arbor and extending into the same atone end, means for holding said disk against rotation in respect to thebarrel, and connections between said disk and said indicating hand.

5. In a going-barrel watch, the combination of a main spring, an arborhaving a threaded bore, a barrel, and a winding indicator including amember having a threaded stem extending into the threaded bore of thearbonand means for holding said member against rotation in respect tothe barrel.

6. In combination, an arbor having a threaded bore, a member having athreaded stem extending into said bore, a hand, a pinion for moving saidhand, and a lever operatively connected to said pinion and said member.v

7. In combination, an oscillatory hand, a pinion connected thereto, alever terminating in a segment in engagement with said p'inion, and anoperating member movable in opposite directions and having engagementwith said lever for oscillating, the same.

In testimony whereof I have signed 1 3' name to this specification inthe presence of two subscribing witnesses.

' SAMUEL Kl HAN.

Witnesses CLAIR W. Fiuanaxn. JOHN P. DAVIS.

